Distance-based methods usually define explicitly a distance between a time-series and a reference to detect anomalies [1]}, [2]}, [3]}, [4]}, as described in Section REF .
Among the most used distance-based algorithm, one can refer to Dynamic Time Warping [5]}, which aims at finding the optimal match between two ordered sequences. Despite their relevance, distance-based methods have been less explored given their relatively high complexity induced by optimal matching and the need for defining a reference time-series [1]}.
